Question: A small sphere having a diameter of 6 mm has an electric heating coil inside, which maintains the outer surface temperature at 220oC. The sphere

A small sphere having a diameter of 6 mm has an electric heating coil inside, which maintains the outer surface temperature at 220oC. The sphere is exposed to an airstream at 1 atm and 20oC with a velocity of 20 m/s. Calculate the heating rate which must be supplied to the sphere.

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T f 220 20 2 120 o C 393 K v 22... View full answer

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